KR100912070B1 - Area Calculation System Of Solar Power Plant - Google Patents

Abstract

The present invention relates to an optimal design system of a medium-sized photovoltaic power generation system, and more particularly, to determine the capacity and type to be installed before installing the medium-sized photovoltaic power generation system and to install according to the determined capacity and type. The present invention relates to an area calculation system of a medium-sized photovoltaic power generation system capable of accurately calculating an installation area, whether fixed or tracking, when it is necessary to determine how much an area is required.

Fixed, Tracked, PV System, Area

Description

Medium-Scale PV System Installation Area Calculation System {Area Calculation System Of Solar Power Plant}

1 is a block diagram of a photovoltaic power generation system installation area calculation system according to a preferred embodiment of the present invention.

FIG. 2A is a front view and a side view schematically illustrating the fixed solar cell array, and FIG. 2B is an area calculation view of the fixed solar cell array according to the preferred embodiment of the present invention.

3A is a front view and a side view schematically showing the traced solar cell array, and FIG. 3B is an area calculation view of the traced solar cell array according to the preferred embodiment of the present invention.

* Description of the symbols for the main parts of the drawings *

10: plane distance calculation module 20: area calculation module

30: interface module 40: area comparison analysis module

The present invention relates to an optimal design system of a medium-sized photovoltaic power generation system, and more particularly, to determine the capacity and type to be installed before installing the medium-sized photovoltaic power generation system and to install according to the determined capacity and type. The present invention relates to an area calculation system of a medium-sized photovoltaic power generation system capable of accurately calculating an installation area, whether fixed or tracking, when it is necessary to determine how much an area is required.

In general, the design process of the photovoltaic power generation system first determines the installation type, installation capacity, installation location and installation area of the grid-connected or stand-alone type, and performs the optimal design based on the determined values.

However, in the related art, when the capacity and type of the photovoltaic power generation system to be installed first are determined at the time of design, there is no system for calculating an accurate area as to how much the area to be installed is required.

In Korea, since the population density is high compared to the area, and the land price is high in the world, it is very important to calculate the exact installation area before the installation of the solar power system, but there is no problem that has a clearly defined standard.

The present invention has been made to solve the above problems, an object of the present invention is to determine the exact installation area of how much installation area is required if the capacity and type of medium-sized photovoltaic power generation system is determined To provide a floor area calculation system.

In order to achieve the above object, the installation area calculation system of the medium-sized photovoltaic power generation system according to the present invention has the rear side of the front array end from the angle at which the output is generated from the sun when the capacity and type are determined in the design of the photovoltaic power generation system. From the plane distance calculation module and the area calculation module for calculating the occupied area of the unit group array from the plane distance path calculated from the plane distance calculation module and the plane distance calculation module for calculating the optimum distance so as not to cover the sunlight on the array surface And an interface module for displaying the calculated area.

The apparatus may further include a comparison analysis module for comparing and analyzing the areas calculated from the area calculation module for each solar system type.

The installation area calculation system of the medium-sized photovoltaic power generation system according to the present invention may be configured and used alone to calculate the installation area of the photovoltaic power generation system, and may be included and included in the design system of the photovoltaic power generation system. .

Hereinafter, the specific configuration and operation of the present invention will be described in detail with reference to the drawings and the embodiments.

1 is a system configuration according to a preferred embodiment of the present invention.

Referring to FIG. 1, the installation area calculation system of the medium-sized solar power generation system according to the present invention may include a plane distance calculation module 10, an area calculation module 20, and an interface module 30. The solar cell system may further include a comparison analysis module 40 for comparing and analyzing the areas calculated from the area calculation module for each solar system type.

The plane distance calculating module 10 calculates the X and Y axis plane distances according to the capacity and type, and the area calculating module 20 calculates the X axis calculated by the plane distance calculating module 10. It calculates the area of the unit group array by multiplying the plane distance by the plane of Y axis. The calculation application of the plane distance calculation module and the area calculation module may be stored and executed in a memory (not shown).

In addition, the interface module 30 performs a function of displaying the result calculated from the area calculating module 20. In addition, the interface module 30 may be configured to include an input unit for receiving the capacity, type and various factors necessary for the area design and an output unit for displaying the area calculated from the area calculating module.

In addition, the comparison analysis module 40 performs a function of comparing and analyzing the area calculated for each capacity and type. Here, the area comparison can be compared by simply displaying the area calculated for each type, and the area can be compared by converting the value obtained by dividing the remaining calculated area into% to be the minimum area. The area comparison program as described above may be stored and executed in a memory (not shown).

Figure 2a is a front view and a side view schematically showing a fixed solar cell array, Figure 2b is an area calculation of the fixed solar cell array according to a preferred embodiment of the present invention, Figure 3a schematically shows a tracking solar cell array Figure 3b is a front view and a side view, Figure 3b is a view of the area calculation of the tracked solar cell array according to a preferred embodiment of the present invention.

Referring to FIG. 2 and FIG. 3, the planar distance calculating module includes L solar cell modules (M × N) according to capacity when the type of the photovoltaic power generation system is a fixed solar cell array. Assume (for example, 4 × 5 = 20) as one array (J × K), and determine the inclination angle (θ) of the solar cell and the angle (Ø) at which the output starts when the sun starts to rise, Calculate the X-axis plane distance of the solar cell module using the formula X = (M × J) cosθ + {(M × J) sinθ)} tan (90-Ø), and use the equation Y = N × K The Y axis plane distance of the battery module is calculated.

Where M is the X-axis length of the solar cell unit module, N is the Y-axis length of the solar cell unit module, J is the number of X-axis solar cell unit modules, and K is the number of Y-axis solar cell unit modules.

The inclination angle θ of the solar cell is selected assuming that the solar cell output is the best, and may be preferably designed at an angle of 30 °.

In addition, the angle Ø at which the sun starts to rise and the output is generated is selected assuming an angle at which the sun starts to rise and the output starts in the day, and may be preferably designed at an angle of 30 °.

If the type of photovoltaic power generation system is a tracked solar cell array, L arrays of solar cell modules (M × N) (for example, 4 × 5 = 20) may be replaced by one array (J × K) depending on the capacity. ), And determine the maximum angle (φ) that the tracked solar cell can move and the angle (Ø) at which the sun starts to rise and the output occurs, and X = (M × J) cosφ + {(M × J Calculate the X-axis plane distance using the equation: sinφ)} tan (90-Ø) and calculate the Y-axis plane distance using the equation Y = (N × K) + Q.

Where N is the X-axis length of the solar cell unit module, M is the Y-axis length of the solar cell unit module, J is the number of X-axis solar cell unit modules, K is the number of Y-axis solar cell unit modules, Q is the space length of the drive. In case of tracking type, the space of driving device should be taken into consideration when calculating the area since the number of array devices is needed between arrays.

The maximum angle Φ that the solar cell can move is selected on the assumption that the solar cell can move, and can be designed on the assumption that it moves only up to 70 °.

The angle (Ø) at which the sun starts to rise and the output occurs is selected assuming an angle at which the sun starts to rise and the output starts, as in the case of a fixed solar cell array, and is preferably designed at an angle of 30 °. Can be.

When the X axis length and the Y axis length of the solar cell module are determined by the plane distance calculation module, the area calculation module calculates the installation area A of the solar cell array unit group.

In addition, when the area of the array unit group is calculated, the area calculating module may calculate the installation area (A _total = SA, where S is the number of array unit groups) of the entire photovoltaic system by adding the number of array unit groups. .

Here, in the case of the tracking type, the driving device space (Q) is a space occurring between the solar cell array groups, so when calculating the total photovoltaic system area, it is calculated by subtracting one Q value [A _total = S {X × (YQ Where S is the number of array unit groups.

 The optimum values (M, N, J, K, N, θ, Ø, Φ, Q) to be inserted into the formula according to the solar installation area calculation and the capacity of the associated system are pre-stored in a memory (not shown) It can be configured to calculate the area of the solar system only by input of the capacity.

<Example>

1.Calculation of installation area of fixed solar cell array

1) home

Assume that 20 modules with a capacity of a solar cell of 200 W (1474 mm × 974 mm) are used in one array group. If a solar cell of another specification is used, the specification of the corresponding solar cell may be used, and data on the specification may be input in advance and stored.

In addition, in order to maximize the output, it is assumed that the inclination angle θ of the solar cell is installed at a 30 ° inclination, which is the best output according to the present research results.

In addition, the maximum output is generated when sunlight is projected at right angles to the solar panel, the first output of the day assumes that the output starts to occur when the sun rises to the position of about 30 degrees from the horizon, the angle Assume that the front solar cell array is spaced from the back solar array so that it does not block sunlight.

2) Calculation of installation area

Therefore, using the factors necessary for calculating the plane distance, M = 1474mm, N = 974mm, L = 20, J = 4, K = 5, θ = 30 °, Ø = 30 ° is calculated as follows.

In this case, the factors may be directly calculated by the administrator, and the input data may be stored in the memory (not shown) and calculated according to the capacity.

Looking at the installation area calculation process with reference to Figure 2b,

X-axis plane length (array spacing) = (M × J) cosθ + {(M × J) sinθ} tan (90-Ø) =

 5.896m × cos30 + (5.896m × sin30) tan60 = 10.21217156m

Y-axis plane length (array length) = N × K = 974 mm × 5 = 4.870 m

Installation area = X × Y = 10.21217 158m × 4.870m = 49.73327551㎡

2. Calculation of footprint of solar cell array

1) home

The same assumptions as for the fixed solar cell array of 1 apply.

However, it is assumed that the solar cell is a single-axis tracking type from left to right, and that the maximum angle Φ that the solar cell moves is 70 °.

In addition, in the case of the tracking type, since the driving device enters, the space Q into which the driving device enters is assumed to be 0.3 m.

2) Area calculation

Therefore, using the factors required for calculating the plane distance, M = 1474mm, N = 974mm, L = 20, J = 4, K = 5, Φ = 70 °, Ø = 30 ° is calculated as follows.

Looking at the installation area calculation process with reference to Figure 3b,

X-axis plane length (array spacing) = (M × J) cosΦ + {(M × J) sinΦ} tan (90-Ø) =

 5.896m × cos70 + (5.896m × sin70) tan60 = 11.612853m

Y-axis plane length (array length) = (N × K) + Q = (974 mm × 5) + 0.3 m = 5.170 m

Area = X × Y = 11.612853m × 5.170m = 60.03845㎡

3. Area comparison between fixed and tracking

When the area of the fixed solar cell array and the tracking solar cell array is calculated as described above, the area comparison analysis module compares and analyzes the area calculated for each type.

The calculation result for the above example

Tracking Area / Fixed Area = 60.03845㎡ / 49.73327551㎡ = 1.2072

Therefore, assuming that the fixed type is installed at an angle of 30 ° and the tracking type moves up to an angle of 70 °, it can be seen that the tracking type increases by 20.72% compared to the fixed type.

Through the area comparison of the area comparison analysis module as described above, it is possible to determine an economical area of the solar system and reflect it in the design.

As described above, the installation area calculation system of the large-scale photovoltaic power generation system according to the present invention is to determine how much area is required if the installation capacity and type is determined in order to perform an accurate design before installation of the photovoltaic power generation system. By accurately calculating the installation area, it can be used not only as an economic analysis index for the investment cost, but also can be used in the solar system design system, which has an excellent effect of efficient and optimal design.

Although the detailed description of the present invention described above has been described with reference to the preferred embodiment of the present invention, the protection scope of the present invention is not limited to the above embodiment, and those skilled in the art will appreciate It will be understood that various modifications and changes can be made in the present invention without departing from the spirit and scope of the invention.

Claims (8)

A planar distance calculating module for calculating an optimal distance between the front solar cell array and the rear solar cell array from an angle at which output is generated from the sun when a capacity and a type are determined when designing a solar power generation system; An area calculating module for calculating an occupancy area of the solar cell array unit group from the plane distance calculated from the plane distance calculating module; And an interface module for displaying the calculated area. The method of claim 1, The area calculation system of the photovoltaic system further comprising an installation area comparison analysis module for comparing and analyzing the installation area according to the design type (fixed, tracking) of the photovoltaic system. The method of claim 1, The interface module An input unit for receiving a capacity, a type, and a factor necessary for the design of the area; And an output unit for displaying the area calculated from the area calculating module. The method of claim 1, The plane distance calculation module When the type of the photovoltaic power generation system is a fixed solar cell array Assume one solar cell module (M × N) and one array (J × K) according to the capacity. The angle of inclination (θ) of the solar cell and the angle (Ø) at which the output starts when the sun starts to rise Using the formula X = (M × J) cosθ + {(M × J) sinθ} tan (90-Ø), the X-axis plane distance of the solar cell module is calculated, The area calculation system of the photovoltaic power generation system characterized by calculating the Y-axis plane distance of a solar cell module using a formula of Y = N × K. Where M is the X-axis length of the solar cell unit module, N is the Y-axis length of the solar cell unit module, J is the number of X-axis solar cell unit modules, and K is the number of Y-axis solar cell unit modules. The method of claim 4, wherein The inclination angle θ is It is 30 degrees, The area calculation system of the photovoltaic power generation system. The method of claim 1, The plane distance calculation module When the type of photovoltaic power generation system is a tracked solar cell array Assume L solar cell modules (M × N) as one array (J × K) according to the capacity, Determine the maximum angle (φ) the solar cell can move and the angle (Ø) at which the sun starts to rise Using the formula X = (M × J) cosφ + {(M × J) sinφ} tan (90-Ø), calculate the X-axis plane distance, An area calculation system of a photovoltaic power generation system, characterized by calculating the Y-axis plane distance using the formula Y = (N × K) + Q. Where M is the X-axis length of the solar cell unit module, N is the Y-axis length of the solar cell unit module, J is the number of X-axis solar cell unit modules, K is the number of Y-axis solar cell unit modules, Q is the space length of the drive. The method of claim 6, The maximum angle φ that the solar cell can move is The area calculation system of the photovoltaic power generation system characterized by being 70 degrees. The method according to claim 4 or 6, The output generation angle (Ø) is It is 30 degrees, The area calculation system of the photovoltaic power generation system.

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